It is in good condition with a large brass funnel as per the photos. It would transform that old lamp v. It will slot into a standard 24.50 mm BR aperture in the reservoir The adjuster shaft is approx 80mm from the centre of the burner.
This product would be ideal for applications requiring a durable and visually appealing brass burner, such as in oil lamps for antique gas mantles or table lamps with a vintage or industrial-inspired design.